Home / 105,556.40-158,334.60-66,234.80

Finding the Fourth Proportional to 105,556.40, 158,334.60 and 66,234.80

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Solution

The fourth proportional to 105,556.40, 158,334.60 and 66,234.80 is: 99,352.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,556.40 : 158,334.60 = 66,234.80 : x
  2. Step 2: Convert to fraction form
    105,556.40/158,334.60 = 66,234.80/x
  3. Step 3: Cross multiply
    105,556.40x = 158,334.60 × 66,234.80
  4. Step 4: Simplify right side
    105,556.40x = 10,487,260,564.08
  5. Step 5: Solve for x
    x = 10,487,260,564.08/105,556.40
  6. Step 6: Final answer
    x = 99,352.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.